* {
	margin: 0;
	padding: 0;
}
body {
	background-color: rgb(243,245,247);
	font-family: "microsoft yahei";
}
li {
	list-style: none;
}

a {
	color: #000000;
	text-decoration: none;
}

.w {
	width: 1200px;
	margin: auto;
}

.header {
	position: sticky;
	top: 30px;
	z-index: 10;
	background-color: rgb(243,245,247);
	height: 42px;
	margin: 30px auto;
}

.login {
	float: left;
	width: 198px;
	height: 42px;
}
.nav {
	float: left;
	margin-left: 60px;
	/* 不指定宽度为了扩展 */
	height: 42px;
}
.nav ul li {
	/* 块级元素浮动 */
	float: left;
}


.nav ul li a {
	display: block;	
	/* 行高会撑大盒子高度，不需要指定高度了 */
	line-height: 42px;
	/* 内边距撑大盒子宽度 */
	padding: 0 12px;
	margin: 0 15px;
	font-size: 18px;
	font-weight: 500;
}
.nav ul li a:hover {
	color: rgb(0,164,254);
	border-bottom: 2px solid rgb(0,164,254);
}
.search {
	float: left;
	width: 412px;
	height: 42px;
	margin-left: 50px;
}

.search input {
	float: left;
	width: 345px;
	/* 需要减去边框 */
	height: 40px;
	border: 1px solid rgb(0,164,254);
	border-right: 0;
	color: rgb(191,197,214);
	font-size: 14px;
	padding-left: 15px;
	/* outline: none; */
}
.search input:visited {
	border-radius: 5px;
	border-color: #000000;
}
.search .search_btn {
	float: right;
	width: 50px;
	height: 42px;
	background-image: url(img/btn.png);
	border: 0;
}

.user {
	float: right;
	width: 155px;
	height: 42px;
}

.user .userimg {
	float: left;
	width: 36px;
	height: 36px;
	border-radius: 18px;
	margin: 3px 0px 3px 20px;
	background-image: url(img/user.png);
	background-repeat: no-repeat;
	background-position: center;
}
.user p {
	display: block;
	float: left;
	/* 不需要设置宽度，由文字长度决定 */
	/* width: 99px; */
	height: 42px;
	line-height: 42px;
}

.banner{
	height: 420px;
	background-color: rgb(28,3,108);
}
.banner .w {
	height: 420px;
	background-image: url(img/banner.png);
	background-position: center;
	background-position: none;
}

.bannerleft {
	float: left;
	width: 190px;
	height: 420px;
	background-color: rgba(0,0,0,.3);
}

.banner .bannerleft li {
	height: 45px;
	line-height: 45px;
	padding: 0 20px;	
}
.banner .bannerleft li a {
	font-size: 14px;
	color: #fff;
}
.banner .bannerleft li a:hover {
	color: rgb(0,164,254);
}
.banner .bannerleft li span {
	float: right;
}

.bannerright {
	float: right;
	width: 230px;
	height: 300px;
	background-color: #fff;
	margin-top: 50px;
}
.bannerright h1 {
	height: 50px;
	line-height: 50px;
	color: #fff;
	font-size: 18px;
	text-align: center;
	background-color: rgb(155,206,234);		
}
.bannerright ul {
	width: 190px;
	margin: 0 auto;
}
.bannerright ul li {
	/* 会撑大盒子 */
	padding: 14px 0;
	border-bottom: 1px solid #a5a5a5;
}
.bannerright ul li h3 {
	font-size: 16px;
	color: #4e4e4e;
}
.bannerright ul li p {
	font-size: 12px;
	color: #a5a5a5;
}
.bannerright a {
	display: block;
	width: 190px;
	height: 38px;
	color: rgb(85,26,139);
	margin: 0 auto;
	margin-top: 5px;
	font-size: 16px;
	line-height: 38px;
	text-align: center;
	font-weight: 700;
	border: 1px solid #00a4ff;
}
.bannerright a:active {
	color: red;
}

.tujian {
	height: 60px;
	margin: 10px auto 0; 
	background-color: #fff;
	box-shadow: 0 2px 3px rgb(0 0 0 / 10%);
}

.tujian h3 {
	float: left;
	line-height: 60px;
	font-size: 16px;
	margin-left: 30px;
	color: #00a4ff;
}
.tujian ul {
	float: left;
	margin-left: 30px;
}
.tujian ul li {
	float: left;
	line-height: 60px;
	
}
.tujian ul li a {
	padding: 0 25px;
	border-left: 1px solid #ccc;
}
.tujian>a {
	float: right;
	font-size: 14px;
	color: #00a4ff;
	line-height: 60px;
	margin-right: 30px;
}

.hd {
	height: 30px;
	margin-top: 30px;
}

.hd h3 {
	float: left;
	font-size: 20px;
	font-weight: 700;
	line-height: 30px;
}
.hd a {
	float: right;
	font-size: 13px;
	line-height: 30px;
	padding-right: 30px;
	color: #CCCCCC;
}

.hd2 ul li {
	position: relative;
	float: left;
	width: 225px;
	height: 270px;
	margin-top: 20px;
	margin-right: 18px;
	background-color: white;
}

.hot {
	position: absolute;
	top: 0;
	right: 0px;
	width: 35px;
	height: 20px;
	background-color: orange;
	color: white;
	line-height: 20px;
	text-align: center;
	font-weight: 700;
	font-style: italic;
}

.hd2 ul li img {
	width: 100%;
}
.hd2 ul li h3 {
	padding: 0 30px;
	font-size: 14px;
	color: #050505;
	font-weight: 400;
	margin-top: 20px;
}

.hd2 ul li p {
	padding: 0 30px;
	margin-top: 23px;
	font-size: 12px;
	color: #999;
}
.hd2 ul li p span{
	color: #ff7c2d;
}

.hd2 ul .last {
	margin-right: 0;
}


.clear {
	clear: both;
}

.footer {
	height: 300px;
	background-color: #FFFFFF;
}

.footer .box {
	height: 210px;
}

.footer .box .left {
	float: left;
	width: 420px;
	height: 155px;
	margin-top: 35px;
}
.footer .box .left p {
	font-size: 12px;
	color: #666;
	margin-top: 20px;
}
.footer .box .left a {
	float: left;
	display: block;
	width: 120px;
	height: 35px;
	margin-top: 20px;
	color: #00a4ff;
	font-weight: 700;
	border: 1px solid #00a4ff;
	text-align: center;
	line-height: 35px;
}

.footer .link {
	float: right;
	width: 440px;
	height: 135px;
	margin-top: 35px;
	
}
.footer .link dl {
	float: left;
	margin-right: 95px;
}
.footer .link dt {
	font-size: 16px;
	color: #333;
	margin-bottom: 5px;
	font-weight: 700;
}

.footer .link dd {
	font-size: 14px;
	height: 25px;
	line-height: 25px;
}
.footer .link dd a {
	color: #333;
}
.footer .link .last {
	margin-right: 0;
}


.top {
	position: fixed;
	left: 50%;
	bottom: 10px;
	margin-left: 600px;
	background-color: orange;
	width: 100px;
	height: 50px;
	text-align: center;
	line-height: 50px;
}